diff --git a/README.md b/README.md
index 76da509..d517d23 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 ## stackS-api
 
 [![Build Status](https://travis-ci.org/hogum/stackS-api.svg?branch=develop)](https://travis-ci.org/hogum/stackS-api)
-[![Coverage Status](https://coveralls.io/repos/github/hogum/stackS-api/badge.svg?branch=develop)](https://coveralls.io/github/hogum/stackS-api?branch=develop) [![Maintainability](https://api.codeclimate.com/v1/badges/026466004435ebedbdf8/maintainability)](https://codeclimate.com/github/hogum/stackS-api/maintainability)
+[![Coverage Status](https://coveralls.io/repos/github/hogum/stackS-api/badge.svg)](https://coveralls.io/github/hogum/stackS-api) [![Maintainability](https://api.codeclimate.com/v1/badges/026466004435ebedbdf8/maintainability)](https://codeclimate.com/github/hogum/stackS-api/maintainability)
 
 [![Run in Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/faa1bb2518cd81a3e91d)
 
@@ -53,9 +53,10 @@ $ flask run
 
 ##### Authorization Endpoints
 
-Method | Enpoint | Functionality
+Method | Endpoint | Functionality
 --- | --- |---
-POST | `api/v1/auth/users` | Re gister new User
+POST | `api/v1/auth/register` | Register new User
+POST | `api/v1/auth/login` | Login registered User
 PUT | `api/v1/auth/users/user_id` | Update user details
 DELETE | `api/v1/auth/users/user_id` | Delete a user account
 GET | `api/v1/auth/users` | Get all registered users
diff --git a/app/__init__.py b/app/__init__.py
index 4c3555d..5d346d0 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,5 +1,5 @@
 from flask import Flask
-from app.v1.views.users import auth
+from app.v1.views.users import auth, blacklisted_tokens
 from instance.config import APP_CONFIG
 from flask_jwt_extended import JWTManager
 
@@ -7,8 +7,16 @@
 def create_app(config_setting):
     app = Flask(__name__)
     app.register_blueprint(auth)
+    app.config['JWT_BLACKLIST_ENABLED'] = True
+    app.config['JWT_BLACKLIST_TOKEN_CHECKS'] = ['access']
+
     jwt = JWTManager(app)
     app.config.from_object(APP_CONFIG[
         config_setting.strip().lower()])
 
+    @jwt.token_in_blacklist_loader
+    def check_blacklisted_token(token):
+        jti = token['jti']
+        return jti in blacklisted_tokens
+
     return app
diff --git a/app/v1/utils/helper.py b/app/v1/utils/helper.py
index d708324..ffe9b50 100644
--- a/app/v1/utils/helper.py
+++ b/app/v1/utils/helper.py
@@ -1,7 +1,6 @@
 import re
-from functools import wraps
+from functools import wraps, partial
 from flask import request, make_response, jsonify
-from werkzeug.exceptions import BadRequest
 
 
 def verify_email(email):
@@ -23,3 +22,20 @@ def wrapper(*args, **kwargs):
                 Please provide a valid json header\t")), 400
         return f(*args, **kwargs)
     return wrapper
+
+
+"""
+def verify_email(f, email):
+    @wraps(f)
+    def wrapper(*args, **kwargs):
+        email_regex = re.compile(r"[^@\\s]+@[^@\\s]+\\.[a-zA-Z0-9]+$")
+
+        if email_regex.match(email):
+            return f(*args, **kwargs)
+        else:
+            return make_response(jsonify("Email format unkown")), 400
+    return wrapper
+
+
+real_email = partial(verify_email)
+"""
diff --git a/app/v1/views/users.py b/app/v1/views/users.py
index 6323bcf..79a63d5 100644
--- a/app/v1/views/users.py
+++ b/app/v1/views/users.py
@@ -1,12 +1,15 @@
 from flask import Blueprint, request, make_response, jsonify, session
 import random
-from flask_jwt_extended import jwt_required, create_access_token
+from flask_jwt_extended import (
+    jwt_required, create_access_token, get_jwt_identity, get_raw_jwt)
 
 from app.v1.utils.helper import verify_email, validate_json_header
 from app.v1.models.users import UserModel
 
 auth = Blueprint('auth', __name__, url_prefix='/api/v1/auth/')
 
+blacklisted_tokens = set()
+
 
 @auth.route('register', methods=['POST', 'GET'])
 @validate_json_header
@@ -18,8 +21,8 @@ def register_user():
     """
     if request.method == 'POST':
         data = request.get_json()
-        email = data['email']
-        password = data['password']
+        email = data.get('email')
+        password = data.get('password')
         username = data.get('username')
 
         if verify_email(email) and len(password) > 6:
@@ -77,3 +80,16 @@ def login_user():
         "Logged in as": repr(user),
         "Token": user_token
     })), 201
+
+
+@auth.route('logout', methods=['DELETE'])
+@validate_json_header
+@jwt_required
+def logout_user():
+    data = request.get_json()
+
+    jti = get_raw_jwt()['jti']
+
+    blacklisted_tokens.add(jti)
+    return make_response(jsonify(
+        "Logout successful")), 201
diff --git a/instance/config.py b/instance/config.py
index ab31de0..4912778 100644
--- a/instance/config.py
+++ b/instance/config.py
@@ -5,10 +5,12 @@ class BaseConfig:
     DEBUG = False
     TESTING = False
     SECRET_KEY = os.environ.get('SECRET_KEY',
-                                os.urandom(16))
+                                b'\xc2;F]l\x046t\xfe\x08'
+                                )
     CSRF_ENABLED = True
     JWT_SECRET_KET = os.environ.get('JWT_SECRET_KEY',
-                                    os.urandom(25))
+                                    b'\xa3$\x0bm\xae\xbbmd\x12\x8f'
+                                    )
 
 
 class DevelopmentConfig(BaseConfig):
diff --git a/requirements.txt b/requirements.txt
index 22037d2..0554967 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,15 @@
 atomicwrites==1.2.1
 attrs==18.2.0
+certifi==2018.11.29
+chardet==3.0.4
 Click==7.0
 coverage==4.5.2
+coverage-badge==0.2.0
+coveralls==1.5.1
+docopt==0.6.2
 Flask==1.0.2
 Flask-JWT-Extended==3.14.0
+idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.10
 MarkupSafe==1.1.0
@@ -13,5 +19,7 @@ py==1.7.0
 PyJWT==1.7.1
 pytest==4.0.2
 pytest-cov==2.6.0
+requests==2.21.0
 six==1.12.0
+urllib3==1.24.1
 Werkzeug==0.14.1
diff --git a/tests/auth_test.py b/tests/auth_test.py
index 5f64c86..9ba8dfa 100644
--- a/tests/auth_test.py
+++ b/tests/auth_test.py
@@ -126,3 +126,16 @@ def test_login_with_unregistered_email(self):
                                     content_type='application/json')
         self.assertEqual(response.status_code, 400,
                          msg="Fails. Logs in user with unknown email")
+
+    def test_logged_in_user_can_log_out(self):
+
+        self.client.post('/api/v1/auth/login',
+                         data=self.user_data,
+                         content_type='application/json')
+
+        response = self.client.delete('/api/v1/auth/logout',
+                                      headers=self.auth_header,
+                                      data=self.user_data,
+                                      content_type='application/json')
+        self.assertEqual(response.status_code, 201,
+                         msg="Fails to logout user")
diff --git a/tests/base_test.py b/tests/base_test.py
index 6f37e74..e7d32e6 100644
--- a/tests/base_test.py
+++ b/tests/base_test.py
@@ -19,3 +19,9 @@ def setUp(self):
                                     data=self.user_data,
                                     content_type='application/json')
         self.new_user = json.loads(response.data.decode())
+
+        login_response = self.client.post('/api/v1/auth/login',
+                                          data=self.user_data,
+                                          content_type='application/json')
+        user = json.loads(login_response.data.decode()).get("Token")
+        self.auth_header = {"Authorization": "Bearer " + user}